52 JOUENAX. OF ENTOMOLOGY AND ZOOLOGY 



EXPLANATION OF PLATE I 



ROSE SCALE, AULACASPIS ROS^ AND SOME OF ITS ENEMIES 



Figure 1. Embryo of the rose scale. 



Figure 2. Eggs of the scale insect. 



Figure 3. The egg-shell. 



Figure 4. A young of the rose scale just hatching. 



Figure 5. An active larva. 



Figure 6. Showing the wandering of active larva on a sheet of paper. 



Figure 7. Antenna of the active larva. 



Figure 8. A portion of the hind leg of the young. 



Figure 9. Young male beginning the secretion of the scale. 



Figure 10a. Scale of the young after the first moult. 



Figure 10b. The young male after the first moult. 



Figure 11a. The scale of male in the pupal stage. 



Figure lib. A pupa of the male. 



Figure 12. Scale of the male adult. 



Figure 13. The adult male of the rose scale. 



Figure 14. Young female beginning the secretion of the scale. 



Figure 15. Scale of the young female after the first moult. 



Figure 16. The young female after the first moult. 



Figure 17. Scale of the young female after the second moult. 



Figure 18. The female after the second moult. 



Figure 19. A full grown female scale. 



Figure 20. A full grown female insect. 



Figure 21. The pupa of a hymenopterous parasite inside of the scale insect. 



Figure 22. The adult of the parasite. 



Figure 23. Part of scale of female turned back to show the egg of Chilocorus bivul- 



nerus lying under the scale. 

 Figure 24. The pupa of Chilocorus bwulnerus. 



